Columbia River System Operations Draft
Environmental Impact Statement

image of Columbia River

Eastern view of the upper Columbia River Gorge Vista House

On February 28, 2020, the U.S. Army Corps of Engineers, Bureau of Reclamation and Bonneville Power Administration released the Columbia River System Operations draft environmental impact statement and preferred alternative for a 45-day public review and comment period that remained open through April 13. The draft EIS contains an analysis of the operations, maintenance and configuration of the 14 federal dam and reservoir projects that are operated as a coordinated system.

The federal agencies are reviewing all comments received through mail, the online comment platform and the six virtual public meetings that involved 1,000 participants. All comments will be considered, and substantive comments will contribute to the overall quality of the final EIS. Additionally, comments will help the agencies deliver a final EIS that supports and balances the needs of stakeholders and communities across the basin and is based on sound and current science.

The final EIS will be complete in summer 2020 followed by each co-lead agency issuing a record of decision in fall 2020. This is consistent with the direction provided in the October 2018 Presidential Memorandum on Promoting the Reliable Supply and Delivery of Water in the West.

CRSO EIS Related Documents
04/09/2020 News Release: Comment period to close soon on CRSO draft environmental impact statement
03/13/2020 News Release: All CRSO Draft EIS Meetings Switched to Virtual
03/12/2020 News Release: Feds shift Seattle, Portland CRSO EIS meetings to 'phone only'
02/28/2020 News Release: CRSO Draft EIS Released
02/28/2020 Executive Summary
02/28/2020 Draft Environmental Impact Statement >>
02/28/2020 View Draft Environmental Impact Statement on EPA Website >>
Reclamation CRSO EIS Project Summaries
Grand Coulee
Hungry Horse


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For questions or to receive updates via postal mail*
Call: 800-290-5033

*Messages sent to the co-lead agencies via email, phone and social media are NOT recorded as comments for the project record. The methods to submit a comment for the project record will be posted on when the comment period begins.

U.S. Army Corps of Engineers
Attn: CRSO EIS, P.O. Box 2870
Portland, OR 97208-2870

Last Update: 6/19/20